Still, little is known about the mysterious entities, but what scientists do know about black holes is that they are a point in space where the gravity is so intense that nothing, not even light, can escape from its immense pull. While nothing in regards to black holes is currently certain, experts believe that once information is inside a black hole, it is lost forever – or so it was thought. One theory now suggests that anything in space consumed by a black hole could be spat out into the future.
Gravitational time dilation is when gravity effects the speed of time – the stronger the gravity, the slower time moves.
With the gravitational pull at the centre of a black hole so intense, time would almost come to a stand still.
Abhay Ashtekar and Javier Olmedo at Pennsylvania State University in University Park and Parampreet Singh at Louisiana State University, theorise that matter sucked in by a black hole could be spat out in the future by a white hole.
This would mean that time would slow down almost completely when looked at by an observer from the outside as the matter travels towards the centre of a black hole.
So when the matter is finally released, only moments would have passed for what has gone in, but thousands of years would have passed for those on the outside.
However, one problem with the theory is that there is no solid evidence of white holes – but they would solve the singularity problem.
As is often the case with singularities – where the laws of physics break down – there is often a piece of the puzzle missing.
The only other time in the universe where a singularity occurs and the laws of physics are thrown out of the window is the Big Bang, which is unexplainable by current scientific methods.
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“This is a compelling picture because it removes the singularity at a black hole’s centre and resolves the paradox of the apparent disappearance of energy and information into a black hole.”
However, Mr Rovelli said there is more work to be done.
He continued: “We are only beginning to understand the quantum physics of black holes, but in this still speculative field, the Ashtekar-Olmedo-Singh result gives us a welcome fixed point: loop gravity predicts that the interior of a black hole continues into a white hole.”
